PM6600 STMicroelectronics, PM6600 Datasheet - Page 15

• Manufacturer Part Number: PM6600
• Description: IC LED DRIVR WHT BCKLT 24-VFQFPN
• Manufacturer: STMicroelectronics
• Type: Backlight, White LEDr

Specifications of PM6600

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 6
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 200kHz ~ 1MHz
• Voltage - Supply: 4.7 V ~ 28 V
• Voltage - Output: 36V
• Mounting Type: Surface Mount
• Package / Case: 24-VFQFN, 24-VFQFPN
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 32mA
• Internal Switch(s): Yes
• Number Of Segments: 60
• Operating Supply Voltage: 4.7 V to 28 V
• Maximum Power Dissipation: 2.3 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• For Use With: 497-8414 - BOARD EVAL BASED ON PM6600
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Efficiency: -
• Lead Free Status / Rohs Status: Details

PM6600
5
Figure 3.
Figure 5.
100
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20
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90
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0
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Typical operating characteristics
All the measures are done with a standard PM6600EVAL demonstration board and a
standard WLED6021NB tamboured, with the components listed in the EVAL_KIT document.
The measures are done with this working conditions, unless specified:
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Efficiency vs
DIM duty cycle @ f
Efficiency vs
DIM duty cycle @ f
20
20
Vin = 12 V
Vout = 6 rows x 10 WLEDs = 34 V (typ)
Iout = 20 mA each row
fsw = 660 kHz (nominal switching frequency, with FSW. AVCC)
Vrow1 to Vrow6 = {0.697, 0.75, 0.818, 0.696, 0.822, 0.363} V
DIM duty cycle [%]
DIM duty cycle [%]
40
40
60
60
DIM
DIM
= 200 Hz
= 1 kHz
Vin = 6V
Vin = 12V
Vin = 18V
Vin = 24V
Vin = 6V
Vin = 12V
Vin = 18V
Vin = 24V
80
80
Doc ID 14248 Rev 7
100
100
Figure 4.
Figure 6.
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
0
Efficiency vs
DIM duty cycle @ f
Efficiency vs
DIM duty cycle @ f
20
20
Typical operating characteristics
DIM duty cycle [%]
DIM duty cycle [%]
40
40
60
60
DIM
DIM
= 500 Hz
= 5 kHz
Vin = 6V
Vin = 12V
Vin = 18V
Vin = 24V
80
Vin = 6V
Vin = 12V
Vin = 18V
Vin = 24V
80
100
100
15/60